The word protract is a verb. The past tense is protracted.
Let's not protract the discussion.
We are unhappy when uncongenial visitors protract their stay.
My mom says that I protract my bedtime routine by taking a long time to get ready for bed.
That is the correct spelling of the verb "protract" (extend, draw out) which is rarely used except as the adjective protracted and the noun protractor.
continue, extend, lengthen
The part of speech for this particular word is a noun.
part of speech
The part of speech for "answer" is a noun.
adverb
what part of speech is beneath
extend stretch elongate prolong protract
The part of speech for "unfamiliar" is an adjective.